diff --git a/.taskcluster.yml b/.taskcluster.yml
index fdada5e32d16..d65da1cdc89b 100644
--- a/.taskcluster.yml
+++ b/.taskcluster.yml
@@ -222,7 +222,7 @@ tasks:
 
                   # Note: This task is built server side without the context or tooling that
                   # exist in tree so we must hard code the hash
-                  image: 'mozillareleases/gecko_decision:3.0.1@sha256:9964730ed951584e65032bd1d6a2b7ede6d880a8b7aefb72d0d7f82346d834e3'
+                  image: 'mozillareleases/gecko_decision:4.0.0@sha256:9f69fe08c28e3cb3cc296451f0a2735df6e25d0e3c877ea735ef1b7f0b345b06'
 
                   maxRunTime: 3600
 
diff --git a/taskcluster/docker/decision/HASH b/taskcluster/docker/decision/HASH
index 9fdbc3a6897e..b854e10d0f44 100644
--- a/taskcluster/docker/decision/HASH
+++ b/taskcluster/docker/decision/HASH
@@ -1 +1 @@
-sha256:9964730ed951584e65032bd1d6a2b7ede6d880a8b7aefb72d0d7f82346d834e3
+sha256:9f69fe08c28e3cb3cc296451f0a2735df6e25d0e3c877ea735ef1b7f0b345b06